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    <meta charset="utf-8">
    <title>jQuery UI Accordion - Default functionality</title>
    <link rel="stylesheet" href="http://apps.bdimg.com/libs/jqueryui/1.9.2/themes/vader/jquery-ui.css">
    <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
    <script src="http://apps.bdimg.com/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
    <link rel="stylesheet" href="/resources/demos/style.css">
    <script>
        $(function () {
            //开启tooltip
            $(document).tooltip();
        });
    </script>
    <style>
        label {
            display: inline-block;
            width: 5em;
        }
    </style>
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<p><a href="#" title="That&apos;s what this widget is">Tooltips</a> can be attached to any element. When you hover
    the element with your mouse, the title attribute is displayed in a little box next to the element, just like a
    native tooltip.</p>

<p>But as it's not a native tooltip, it can be styled. Any themes built with
    <a href="http://jqueryui.com/themeroller/" title="ThemeRoller: jQuery UI&apos;s theme builder application">ThemeRoller</a>
    will also style tooltips accordingly.</p>

<p>Tooltips are also useful for form elements, to show some additional information in the context of each field.</p>

<p><label for="age">Your age:</label><input id="age" title="We ask for your age only for statistical purposes."></p>

<p>Hover the field to see the tooltip.</p>




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